Which best supports the claim that the argument in the last three sentences of section one is valid? a) it is possible for both its premises to be true and its conclusion to be false. b) the premise can be determined to be true and the conclusion follows that premise. c) some support for the valid conclusion must exist to demonstrate its truth. d) this argument is valid because it leads to its own conclusion.

The correct answer is option "B": The argument is valid if the premise can be determined to be true and the conclusion follows that premise.  

For a valid argument, the conclusion must logically follow from the premises. According to a deductively valid argument, if the premises about the argument are true, its conclusions must be also true; since there is no possiblity that the conclusions are false with true premises. Besides, false premises are followed by false conclusions. However, false premises can have true conclusions. But a true premise cannot have a false conclusion.

the illustration   that would give a reader a clear understanding of the text is a picture of men constructing the frame of a building.the frame is made of iron bars. the text describes the job of blacksmiths'. these were very organised and they had different names: "the driver" and "the heater". the text describes the way in which these men worked ; they worked iron pieces as if they were playing a sport. in fact, the text wants to show the men's skills. the text also puts some emphasis on the use of '' rivets'' in construction. this kind of nails were not always used in the construction of manhattan.

some examples:

"and with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can." men's skills

"when the driver was ready for a new " the emphasis on the rivet ( special nail used in construction).

" it against a beam to remove any cinders, and jammed it into the waiting hole. " the emphasis on the rivet.

vey information about pap? physical description beliefs actions interactions